A Study On The Basic Properties And Bearing Capacity Of Foundation Of Mixed Soils In Guilin

In this research,has its special nature and its unique regional.Therefore,we need to do further research on the understanding and understanding of mixed soil.Firstly,in the first chapter of this paper,the basis of selecting mixed soil is briefly introduced.From the previous research results of scholars,the classification and existing forms of mixed soil and the factors forming different types of mixed soil are discussed.Secondly,the geological conditions and environment of engineering vehicles in Guilin area are briefly described,including topographic and geological structure,stratigraphic conditions and basic karst characteristics,relevant definitions and concepts of foundation bearing capacity,and several methods for determining foundation bearing capacity.For example,there are many methods in in-situ test,such as standard table method,theoretical formula method and in-situ test method,among which the most reliable one is the load test method.Thirdly,according to the actual engineering test,according to the test data of the bearing capacity of the mixed soil foundation,such as standard penetration test,static load test and field shear test,and through relevant formula calculation and scientific analysis,it is possible to verify that the mixed soil layer of Guilin can be used as foundation holding layer under certain conditions;At the same time,using extrapolation method to calculate the ultimate bearing capacity of the foundation of test soil samples,and by comparing the calculation results of these methods,we can see that the results of using McSukieweiler's judicial method,that is,the straight line method are more ideal.Fourth,the numerical simulation analysis of load test is carried out,and the numerical model is established by using FLAC3 D software.The data obtained are compared with the field test,and their data are analyzed.The curves in the diagram show that the variation law of them is roughly the same.It also shows the maneuverability of numerical simulation method in engineering practice.